Ok, I'll start
You go outside with your baseball bat and hit random stray dogs with it.
You refer to your girlfriend as Paula.
You can do the entire Giygas fight without even CRINGING. (I can actually do this)
You look for a secret entrance to an underground cave at Stongehenge.
You end your sentences with "BoInG" or "zOoM"
Any more?

You start humming the coffee music every time you drink coffee or tea.

quote Cero

You give the local nerd a few broken pieces of garbage and expect a gun out of it all.

Hey, you may never know.

Hey, this is fun!
You think that if you eat cake, you'll trip (the drug type)
You phone your dad and ask him to save your progress.
You phone your little sister and ask her to store some items for you.

Your dad actually does save the game for you.

You hum the encounter music whenever someone touches you.